Aluminum alloy.



UNITED snares ma a @FFIGE.

WILLIAM A. McADAIVIS, 0F BAY SHORE, NEW YORK.

ALUMINUM ALLOY.

No Drawing.

T all whom it may concern:

Be it known that I, WILLIAM A. Mc- ADAMs, a citizen of the United States, and

resident of Bay Shore, in the county of Suf-V folk and State of New York, have invented a new and useful Aluminum Alloy, of which the following is a specification.

Myinvention relates to an aluminum alloy.

particularly adapted to casting purposes and consisting of aluminum, silver, copper and cadmium. These parts are combined substantially in the proportions of aluminum eighty-two parts by weight, silver one part, copper twelve parts and cadmium five parts.

In forming the alloy, the aluminum is first melted, the copper is then added and the two melted together, then the silver is added, then the temperature is lowered as low as it can be and yet remain sufiiciently high to melt the cadmium when the latter is introduced, and the mixture is thoroughly stirred and then poured into molds to form the article to be cast, or into molds to form ingots for shipment for further use.

It has been ascertained by a careful test of more than a year, that this alloy will withstand the action of spring or lake wa- Specification of Letters Patent.

1 as my invention,

ter, such as is commonly distributed in city water supplies, Without corrosion, or stain,

vand, while brass and bronze faucets and fixlighter in weight than bronze or copper for v shipment and handling.

What I claim is:

An aluminum alloy composed of aluminum, silver, copper and cadmium combined Patented July 13, 1915.

Application filed. November 14, 1914. Serial No. 872,231.

substantially in the proportion of eightytwo parts by weight of aluminum, one part by weight ofsilver, twelve parts by weight of copper and five parts by weight of cadmlum. e

In testimony, that I claim the foregoing I have signed my name in presence of two witnesses, this 30th day of October, 1914:.

WILLIAM A. MGADAMS. Witnesses: HENRY C. THIEME, LIDA M. EGBERT. 

